114 
DIDYNAM1A ANGI0SPERM1A. 
1. Aphylla. Nuttall. 
G. caule nudo, sub- 
simplici, squarais op- 
positis, ovatis, parvu- 
lis, deciduis ; corollis 
pedunculo longiori- 
bus. 
Stem naked, near* 
ly simple, with scales 
opposite, ovate, small, 
deciduous ; corolla 
longer than the pedun- 
cle. 
Nutt. 2. p. 38. 
Annual. Stem about 3 feet high, erect, very sparingly branched. Ve- 
ry minute leaves are sometimes, but sparingly found. In their place, are mi- 
nute, sphacelate scales. Calyx minutely 5-toothed. Corolla rather small. 
Capsule ovate, longer than the calyx. Nuttall. First discovered by Dr. 
Baldwin in E. Florida. 
Grows sparingly along the coast as far as Wilmington, N. Carolina. 
Flowers probably during the summer. 
2. Plukenetii. E. 
G. caule ramosissi- 
mo ; foliis setaceis, 
glabris; floribus axil- 
laribus terminalibus- 
que ; pedunculis folio 
brevioribus ;• calycis 
dentibus setaceis, bre- 
vissimis. 
Pluk. Phyt. T. 12. F. 4. 
Stem erect, about 2 feet high, slightly angled, very much branched. 
Leaves scarcely an inch long, perfectly setaceous, incurved when dry. 
Flowers numerous near the summit of the branches, generally terminal, 
sometimes opposite and axillary. Peduncles about half as long as the 
leaves. Calyx truncate, with 5 minute, acute teeth. Corolla rather small 
for this genus, pubescent. Capsule globular, longer than the calyx. 
This plant agrees minutely with the figure of Piukenet to which I have 
referred, and which is alluded to in Linnaeus as a variety of his G. Pur- 
purea. 
Grows in wet spungy soils, very common between the Oakmulgee and 
Chatahouchie Rivers, and probably extends through the middle country 
of Carolina and Georgia. 
Flowers August — October. 
Stem much branch- 
ed ; leaves setaceous, 
glabrous; flowers axil- 
lary and terminal; pe- 
duncles shorter than 
the leaves; teeth of the 
calyx setaceous, very 
short. 
